Loop quantum gravity corrections to gravitational wave dispersion
General Relativity and Quantum Cosmology
2008-11-26 v1 Astrophysics
High Energy Physics - Theory
Abstract
Cosmological tensor perturbations equations are derived for Hamiltonian cosmology based on Ashtekar's formulation of general relativity, including typical quantum gravity effects in the Hamiltonian constraint as they are expected from loop quantum gravity. This translates to corrections of the dispersion relation for gravitational waves. The main application here is the preservation of causality which is shown to be realized due to the absence of anomalies in the effective constraint algebra used.
Cite
@article{arxiv.0709.2365,
title = {Loop quantum gravity corrections to gravitational wave dispersion},
author = {Martin Bojowald and Golam Mortuza Hossain},
journal= {arXiv preprint arXiv:0709.2365},
year = {2008}
}
Comments
27 pages